/// <summary>
 /// Specify Kestrel as the server to be used by the game host.
 /// </summary>
 /// <param name="hostBuilder">
 /// The Contoso.GameNetCore.Hosting.IGameHostBuilder to configure.
 /// </param>
 /// <param name="configureOptions">A callback to configure Kestrel options.</param>
 /// <returns>
 /// The Contoso.GameNetCore.Hosting.IGameHostBuilder.
 /// </returns>
 public static IGameHostBuilder UseKestrel(this IGameHostBuilder hostBuilder, Action <GameHostBuilderContext, KestrelServerOptions> configureOptions) =>
 hostBuilder.UseKestrel().ConfigureKestrel(configureOptions);
 /// <summary>
 /// Specify Kestrel as the server to be used by the game host.
 /// </summary>
 /// <param name="hostBuilder">
 /// The Contoso.GameNetCore.Hosting.IGameHostBuilder to configure.
 /// </param>
 /// <param name="options">
 /// A callback to configure Kestrel options.
 /// </param>
 /// <returns>
 /// The Contoso.GameNetCore.Hosting.IGameHostBuilder.
 /// </returns>
 public static IGameHostBuilder UseKestrel(this IGameHostBuilder hostBuilder, Action <KestrelServerOptions> options) => hostBuilder.UseKestrel().ConfigureKestrel(options);